/** {@inheritDoc} */
@Override
@Nullable
public String apply(@Nullable final ProfileRequestContext input) {
if (input == null) {
return null;
}
final SpringRequestContext springRequestContext =
input.getSubcontext(SpringRequestContext.class, false);
if (springRequestContext == null) {
return null;
}
final RequestContext requestContext = springRequestContext.getRequestContext();
if (requestContext == null) {
return null;
}
final FlowExecutionContext flowExecutionContext = requestContext.getFlowExecutionContext();
if (flowExecutionContext == null) {
return null;
}
if (!flowExecutionContext.isActive()) {
return null;
}
final FlowDefinition flowDefinition = requestContext.getActiveFlow();
final String flowId = flowDefinition.getId();
log.debug("Current flow id is '{}'", flowId);
return flowId;
}
@Override
public void paused(RequestContext context) {
if (isPersistenceContext(context.getActiveFlow())) {
final EntityManager em =
getEntityManager(context.getFlowExecutionContext().getActiveSession());
/*
* we were not be able to determine if entityManager has opened
* connections, then the commit statement is always executed when
* flow is paused
*/
transactionTemplate.execute(
new TransactionCallbackWithoutResult() {
protected void doInTransactionWithoutResult(TransactionStatus status) {
/*
* Commit using the same connection retrieved by hibernate
* lazy load,if exists, otherwise another connection will be
* requested from pool
*/
em.joinTransaction();
}
});
}
super.paused(context);
}
private String getFlowExecutionKey() {
RequestContext requestContext = RequestContextHolder.getRequestContext();
return requestContext.getFlowExecutionContext().getKey().toString();
}